Above ground pool prices can start as low as $1000 uninstalled, but costs can quickly go up with Kits bought from big box stores can be an affordable DIY project. 24'x12' - $2,400.00; 33'x18' - $3,200.00; 41'x21' - $4,400.00 Some handy DIYers install the pool and then build a deck around it for a truly custom look.